@kndaustin71 Symptoms of vertigo and muscular headaches on the back of the head can be caused by spine issues if a muscle spasm has shifted spinal alignment. I am a cervical spine surgery patient, and this happened to me before I had a C5/C6 fusion surgery. My physical therapist was able to work on my muscles to get my spine better aligned and stop the symptoms. It might be worth asking your doctor about a physical therapy evaluation or some imaging of your neck to see if there are any degenerative spine issues that may trigger muscle spasms. Physical therapy can help a lot and may be a simple solution.